1. >> PHP: Form-Variables & Submission

2. Form Submission <form > </form> id=“ “ name=“ “ action=“ “
method=“ “
For form identification
File/function to call
Method to submit the form
GET | POST
<form name=“contact” action=“process.php” method=“GET”>
1. contact.html
2. return contact.html
3. Fill form
4. process.php (values)
6. HTML File
5. Run process.php

3. GET Method Sends the form information by including it on the URL
process.php?name=……& =……&content=……
When to use
Short forms, with only 1 or 2 input fields
Forms with select, radio, and checkbox fields

4. Google Maps
Graduation Party
maps.google.com/maps?saddr=……&daddr=…….
You are invited!!!!!!!!
Please Please come
If unable to find, enter your address below and I will guide you
Maps with directions
Guide Me
<form action=" method="get" target="_blank">
If unable to find, enter your address below and I will guide you
<input type="text" name="saddr" />
<input type="hidden" name="daddr" value=“King Faisal University" />
<input type="submit" value=“Guide Me" />
</form>

5. Google Maps

6. POST Method Sends the data to the server in two steps
Browser contacts the server
Send the information
When to use
Longer forms, more than 3 input fields
Forms with large textarea fields
Forms where security is more important

7. Some Guidelines Always assign a name attribute to your form fields
Eg. <input type=“text” name=“username”/>
Remember Associative Arrays
name=“username”
=>
What the user enters
Key
Value
How will you access this information in PHP
Create a variable
Use the associative array technique
Index is the key name
What is the array-name?
Based on the method used
$uname =
array-name
‘username’
$_GET | $_POST

8. All Pre-defined Form Variables
$_GET variable can be used to collect form data sent with the GET method.
$_POST variable can be used to collect form data sent with the POST method.
$_REQUEST variable can be used to collect form data sent with both the GET and POST methods.
$varName = $_GET[‘username’];
$varName = $_POST[‘username’];
$varName = $_REQUEST[‘username’];

9. Back to Mini Project Our Old Files Go Online index.php header.php
footer.php
contact.php
stuff.php
Go Online
Download the add-item.php file
Copy in the same folder (D:\xampp\htdocs\Buy4mMe\)
Now open the project in Aptana/NetBeans

10. Processing File TRY NOW TRY NOW Will this work?
Create a new file called add-process.php
Open the file and accept the submitted values from the form (using the $_POST variable)
Write Insert Query to add the item to the database
TRY NOW
Will this work?
Open the add-item.php file
Go down to the form tag
Add the attributes
method
action
TRY NOW